EVENTS THAT MAKE A DIFFERENCE
From costumes to cocktails, every Yellow Bear event is rooted in purpose. Whether you're lacing up for a spooky race, dressing up for a night out, or showing up for families impacted by PI, your presence moves the mission forward. Check out our annual events and discover how you can be part of creating a brighter tomorrow!

We brought back the legendary, packed with chills, thrills, and just enough fear to keep you moving. The Screaming Pumpkin offers something for everyone: a 2-mile walk, 6.55-mile run, and our signature prediction races including the half, full, and relay marathons. Spectators are encouraged! Invite friends and family to bring blankets, chairs, and all the spooky energy to cheer you across the finish line.
This epic night supports our mission to raise awareness and fund research for PI, helping improve diagnosis, treatment, and quality of life for those who live with it.
Once you start, there's no turning back!



Join the Yellow Bear Foundation at the Peoria Chiefs! Enjoy the game while helping create a better tomorrow for PI. Stay tuned for more details!


For our 7th anniversary, we went all in and switched our fan-favorite annual cocktail event 'The Fair' to 'A Night at the Casino.' To put it lightly, it was a smashing success!
Guests tried their luck at state-of-the-art casino games, sipped on signature cocktails and enjoyed gourmet bites, danced the night away with live music from ‘Patrick n Swayze,’ and won big—all while supporting a brighter tomorrow for PI! Check out our recap video below, and stay tuned for our 2026 dates!


Ready to get out and beat cabin fever? Join us for Hibernation Celebration: A Night in the Galaxy! We're super excited to enjoy a fun "Star Wars" themed evening, featuring museum exhibits, planetarium shows, some special appearances from beloved characters, and more!
There will also be a Giant Screen Theater showing of “Star Wars Episode V: The Empire Strikes Back” available with 'Movie Ticket + Museum Admission' (not included in a 'Museum Admission Only' Ticket). Individual Museum Admission tickets are available for $5/person. Movie Tickets + Museum Admission are available for $20/person, and include a popcorn & drink combo!
Invite your family and friends—you don’t want to miss this chance to get out of the house and have a fun night under the stars! P.S. Costumes are encouraged!
STAY TUNED FOR HIBERNATION CELEBRATION 2026

LEARN HOW YOU CAN
BECOME A SPONSOR!
Our events and campaigns are made possible with the partnership of our generous sponsors. Learn more about how you can become a sponsor for the Yellow Bear Foundation today! We offer several different sponsorship packages, and we have options for both event and corporate sponsorship.
The Yellow Bear Foundation is a nonprofit organization empowering communities to spread awareness and fund research of Primary Immunodeficiency (PI). 100% of the profits raised from our fundraising events are used in efforts to continue to spread awareness for PI, and a portion are also distributed to OSF Healthcare Children's Hospital of Illinois, The Bleeding & Clotting Disorders Institute, the Jeffrey Modell Foundation, and the Immune Deficiency Foundation.